GB499532A - Improvements in or relating to cathode ray tubes and the like - Google Patents

Improvements in or relating to cathode ray tubes and the like

Info

Publication number
GB499532A
GB499532A GB3133337A GB3133337A GB499532A GB 499532 A GB499532 A GB 499532A GB 3133337 A GB3133337 A GB 3133337A GB 3133337 A GB3133337 A GB 3133337A GB 499532 A GB499532 A GB 499532A
Authority
GB
United Kingdom
Prior art keywords
cathode
ray tubes
relating
electrode
cathode ray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3133337A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3133337A priority Critical patent/GB499532A/en
Publication of GB499532A publication Critical patent/GB499532A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/485—Construction of the gun or of parts thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

499,532. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and HOBDAY, J. G. Nov. 15, 1937, No. 31333. [Class 39 (i)] In cathode-ray or like tube, the indirectly - heated cylindrical cathode 1 is accurately located relatively to the modulating electrode 4, 5 by means of a rigid clip-shaped member 7 attached to the cathode at its end 8 remote from the emissive portion 3 and aligned and spaced relatively to the modulating electrode by one or more insulating washers 11 engaging the conical flare 9, and one or more insulating spacers 10. The washer 11 is forced against the flare 9 by a tubular member 12 which is finally secured by a wire 13 to the electrode 4. The member 7 has holes 18, 19 to facilitate evacuation. Specifications 476,830 and 487,974 are referred to.
GB3133337A 1937-11-15 1937-11-15 Improvements in or relating to cathode ray tubes and the like Expired GB499532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3133337A GB499532A (en) 1937-11-15 1937-11-15 Improvements in or relating to cathode ray tubes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3133337A GB499532A (en) 1937-11-15 1937-11-15 Improvements in or relating to cathode ray tubes and the like

Publications (1)

Publication Number Publication Date
GB499532A true GB499532A (en) 1939-01-25

Family

ID=10321573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3133337A Expired GB499532A (en) 1937-11-15 1937-11-15 Improvements in or relating to cathode ray tubes and the like

Country Status (1)

Country Link
GB (1) GB499532A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914694A (en) * 1957-10-04 1959-11-24 Rca Corp Cathode assembly
DE973595C (en) * 1951-01-06 1960-04-07 Philips Nv Diode for very short waves with plane-parallel electrodes
DE1491499C1 (en) * 1961-01-26 1972-09-14 Varian Associates Electron beam generator for a transit time tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973595C (en) * 1951-01-06 1960-04-07 Philips Nv Diode for very short waves with plane-parallel electrodes
US2914694A (en) * 1957-10-04 1959-11-24 Rca Corp Cathode assembly
DE1491499C1 (en) * 1961-01-26 1972-09-14 Varian Associates Electron beam generator for a transit time tube

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